in neat (no solvent) decompn. of the halogenide on a electrically heated tungsten wire in high vacuum (10E-6 - 10E-5 mm Hg);; layer of Pa on tungsten formed;;
参考文献
Grosse, A. v.
Science (Washington, DC, United States), 1934 , vol. 80, p. 513 - 513
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Gmelin Handbook: Pa: MVol., 10, page 36 - 43